package chapter8.java1;

import org.springframework.asm.ClassWriter;
import org.springframework.asm.Opcodes;

/**
 * @Author juzipi
 * @Date 2021/5/26 14:44
 * @Info
 */
public class OOMTest extends ClassLoader {

    public static void main(String[] args) {
        int j = 0;
        try{
            OOMTest oomTest = new OOMTest();
            for (int i = 0; i < 10000; i++) {
                //创建ClassWriter对象，用于生成类的二进制字节码
                ClassWriter classWriter = new ClassWriter(0);
                //指明版本号，修饰符，类名，包名，父类，接口
                classWriter.visit(Opcodes.V1_8, Opcodes.ACC_PUBLIC,"Class"+i,null,"java/lang/Object",null);
                //返回byte[]
                byte[] code = classWriter.toByteArray();
                //类的加载
                oomTest.defineClass("class"+i,code,0,code.length);
                j++;

            }
        }finally {
            System.out.println(j);
        }

    }


}
